/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetBlueprintLibrary.h
Creates a Slate Brush from a Material. Materials don't have an implicit size, so providing a widget and height is required to hint slate with how large the image wants to be by default.
A new slate brush using the material.
static [FSlateBrush](API\Runtime\SlateCore\Styling\FSlateBrush) MakeBrushFromMaterial ( [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * Material, int32 Width, int32 Height )